X-Git-Url: https://gerrit.onap.org/r/gitweb?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Forg%2Fonap%2Fdmaap%2Fdbcapi%2Futil%2FFqdn.java;fp=src%2Fmain%2Fjava%2Forg%2Fonap%2Fdmaap%2Fdbcapi%2Futil%2FFqdn.java;h=37715d39e20a5b7a039dbb17d690c4fdc087848a;hb=8f54f37825746cf82b33a21ff356950eb682d290;hp=0000000000000000000000000000000000000000;hpb=955500a4aa5c86a1ccc8c4bdf81c65daff41070a;p=dmaap%2Fdbcapi.git

diff --git a/src/main/java/org/onap/dmaap/dbcapi/util/Fqdn.java b/src/main/java/org/onap/dmaap/dbcapi/util/Fqdn.java
new file mode 100644
index 0000000..37715d3
--- /dev/null
+++ b/src/main/java/org/onap/dmaap/dbcapi/util/Fqdn.java
@@ -0,0 +1,42 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.dmaap
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.dmaap.dbcapi.util;
+
+import java.util.regex.Pattern;
+
+import org.onap.dmaap.dbcapi.logging.BaseLoggingClass;
+
+public class Fqdn extends BaseLoggingClass {
+	// regexp value sourced from https://www.regextester.com/23
+	static String regexp = "^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\\-]*[a-zA-Z0-9])\\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\\-]*[A-Za-z0-9])$";
+	
+	
+	public static boolean isValid( String s ) {
+		appLogger.info( "Fqdn testing: " + s );
+		boolean b = false;
+		if ( s != null ) {
+			b = Pattern.matches( regexp, s);
+		}
+		appLogger.info( "Fqdn isValid=" + b );
+		return b;
+	}
+
+}